#42A07B
Closest named color: Ocean Green (#3D9973). oklch(63.9% 0.106 164.4), rgb(66, 160, 123).
Aa
Black text reads best on this color (6.54:1).
About this color
#42A07B is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.106 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.022 away. Black text reads best on it, at 6.54:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.54:1 |
| White text | 3.20:1 |
Values
| HEX | #42A07B |
| RGB | rgb(66, 160, 123) |
| HSL | hsl(156, 42%, 44%) |
| OKLCH | oklch(63.9% 0.106 164.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #42A07B | 3.20:1 | AA large text | Lc -64.5 | Content text, not long reading |
| Black text on #42A07B | 6.54:1 | AA | Lc 45.0 | Large or bold text, headings |
| #42A07B text on white | 3.20:1 | AA large text | Lc 59.0 | Large or bold text, headings |
| #42A07B text on black | 6.54:1 | AA | Lc -42.7 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EDE7
oklch(93.5% 0.015 164.7)
-
Step 200
200
#C9DFD4
oklch(88.4% 0.028 164.3)
-
Step 300
300
#A2CCB8
oklch(80.9% 0.053 164.5)
-
Step 400
400
#6DB193
oklch(70.6% 0.083 164.4)
-
Step 500
500 (this color)
#42A07B
oklch(63.9% 0.106 164.4)
-
Step 600
600
#0C8861
oklch(55.6% 0.116 164.2)
-
Step 700
700
#007351
oklch(49.2% 0.104 164.3)
-
Step 800
800
#055E42
oklch(42.8% 0.089 164.3)
-
Step 900
900
#144D38
oklch(37.7% 0.069 164.5)
-
Step 950
950
#0E2D21
oklch(27% 0.043 165.1)
#42A07B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #9D9579 | 0.104 |
| Deuteranopia (no green cones) | #908C7D | 0.100 |
| Tritanopia (no blue cones) | #12A096 | 0.042 |
| Achromatopsia (no color) | #909090 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42A07B
#42A07B
oklch(63.9% 0.106 164.4)
- #B9719B
#B9719B
oklch(63.9% 0.105 344.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #42A07B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.022
- Jade #1FA774 ΔE 0.031
- Persian Green #2A9D8F ΔE 0.035
- Grey Teal #5E9B8A ΔE 0.040
- Blue Green #0F9B8E ΔE 0.041
- Dull Teal #5F9E8F ΔE 0.043
- Sea #3C9992 ΔE 0.046
- Tea #65AB7C ΔE 0.047
Use #42A07B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.